THE LAYERED COMPOUND TL2NBO2PO4 - SYNTHESIS AND CRYSTAL-STRUCTURE

被引：12

作者：

FAKHFAKH, M

ZID, MF

JOUINI, N

TOURNOUX, M

机构：

[1] ECOLE NORMALE SUPER ENSEIGNEMENT TECHN,1008 TUNIS,TUNISIA

[2] INST MAT NANTES,CHIM SOLIDES LAB,F-44072 NANTES 03,FRANCE

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1993年 / 102卷 / 02期

关键词：

D O I：

10.1006/jssc.1993.1047

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new layered compound, Tl2NbO2PO4, has been isolated. It crystallizes in the rhombohedral system, space group R3̄. The cell parameters are a = 8.746(2)Å, c = 44.753(7)Å. Z = 18. Its structure has been determined from 990 independent reflections, with I ≥ 3σ(I), collected on a CAD4 automated diffractometer. The final R index and weighted Rω index are 0.034 and 0.032, respectively. This structure is built up from layers of NbO6 octahedra and PO4 tetrahedra sharing corners. The Tl ions are located in the interlayer spaces. © 1993 Academic Press, Inc.

引用

页码：368 / 374

页数：7

共 19 条

[1] NEW OXIDES IN LATTICE OF OCTAHEDRA NBO6 (TAO6) AND SI2O7 GROUPS - PHASES A3TA6SI4O26 (A=BA, SR) AND K6M6SI4O26 (M=NB,TA) [J].